Improvement in clay-crushers



dichiari tetcs ALFRED HALL, 0F PERTH AMBOY', NEW JERSEY.

Letters Patent No. 98,'1 64, dated January 11, 1870.

The Schedule referred to in these Letters Patentand making part of the seue.

To all whom it may concern Be it known that I, ALFRED HALL, of Perth Amboy, in the county of Middlesex, and State of New Jersey, have invented a new and improved Clay- Cru'sher; and I do hereby declare' that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing, forming part of this specification.

This invention relates to a new and useful improvement in machines for crushing clay, and other similar substances, and consists in two cogged and grooved cylinders, which are rotated so as to engagewith each other; and in combination therewith, a series of cleaning-bars or Scrapers, and also in 'the general arrangement and 'combination of parts, as hereinafter more fully described.A

.In the accompanying drawing- Figure 1 represents a vertical section vof the ma-Y chine through the line x :cof tig.V 2, showing the crushingcylinders, cleaners, and the gear-wheels, ily-wheel, arid pinion, by -which motion is imparted to the crushing-cylinders and regulated.

'Figure 2 is a horizontal section ot' fig. l, through the llille y y, showing the grooves in the crushing-cylinders, andthe form and position of; the cleaning-bars.

Similar letters of reference indicate corresponding parts. I

A represents the frame, by which the operative parts of the machine are supported.

B B are the crushing-cylinders.

C is the wheel, to which power is appliedrby m'cans of the small wheel D on a line-shaft.

The wheel C is firmly attached to the shaft of the crushing-cylinder B. This cylinder B engages with and drives the cylinder B', as seen in fig. l.

The journals of these cylinders are supported on the frame A, in boxes of any suitable description.

E is a ly-wheel for regulating the motion of the cylinders, which is revolved by means of a pinion, which meshes into the wheel C, the pinion being on the ily-wheel shaft, as represented in lig. l.

F represents thecleaning-bars.

G represents metallic plates, secured to the crosspieces H ofthe framewith` their outer edges turned up, as'seen in the drawing, so as to form a shoulder for the ends of the bar.

The bars are `bolted to these plates. They are not .made entirely'rigid, but may be leftA slightly loose, so

that if they do not perfectly fit their respective grooves, they will adjust themselves to any inequalities therein, and be less likely to catch and be broken.

I represents the projecting cogs on the crushing-v cylinders. These cogs form rows across thecylinders, as seen in iig. 2, which rows of cogs on the two cyl-` inders engage with `each other, the same as two single cogs on separate wheels.

In this case the cogs are divided by deep grooves J, which extend below the base of the cogs into the body of the cylinder', as seen in the drawing.v

Into these grooves, the ends ofthe cleaning-bars F are made to lit, or nearly tit As the cylinders revolve, the bars clean lthe grooves of .the clay which is forced into them, whichclay be-I ing suiiiciently crushed, yis afterward manipulated or treated, by soaking in water or otherwise, to lit it for monldings.

The clay which is caught in the ends of the cogs, in the process of crushing, is forced into the grooves, and removed by the cleaning-bars, and drops from the machine into any proper receptacle. v

The cogs and grooves of the crushing-cylinders may be cut on the surface of ent-ire cylinders, if desired, but

4I prefer to make the cylinders of a succession of rings placed and properly fastened on their shafts, each ring being a cog-wheel, with a collar for forming a single groove. "lhe outside rings of each cylinder would have a collar on each side, so as to keep the cogs a suitable distance 'from the frame.

The clay or other-material to be crushed, is thrown i into a hopper or suitable receptacleover the crushingcylinders. These cylinders revolve in the direction indicated by the arrows, and of course the clay orother material is carried down between them.

.Having ,thus described my invention,

I claim as new,- and desire to secure by Letters Patentl. lhe arrangement, respectively, upon two claycrushing rollers, of cogs I and grooves J, as setforth, and for the purpose specified.

2. The combination of a pair of clay-crushing cylinders, grooved and cogged on their periplieries', as set forth, with a series ot' Scrapers arranged opposite to each cylinder in the manner described.

ALFRED HALL. Witnesses:

H. N. TAF'r,

GEO. W. MABEE. 

